#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

// Pin sensor DHT22
#define DHTPIN 12
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);

// Alamat I2C LCD biasanya 0x27, ukuran 16 kolom x 2 baris
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(9600);
  dht.begin();

  lcd.init();       // Inisialisasi LCD
  lcd.backlight();  // Nyalakan backlight LCD

  lcd.setCursor(0,0);
  lcd.print("Stasiun Cuaca");
  lcd.setCursor(0,1);
  lcd.print("Mini I2C LCD");
  delay(2000);
  lcd.clear();
}

void loop() {
  delay(2000);

  float kelembapan = dht.readHumidity();
  float suhu = dht.readTemperature();

  if (isnan(kelembapan) || isnan(suhu)) {
    lcd.clear();
    lcd.print("Gagal baca");
    lcd.setCursor(0,1);
    lcd.print("sensor DHT22");
    Serial.println("Gagal membaca sensor DHT22!");
    return;
  }

  Serial.print("Suhu: ");
  Serial.print(suhu);
  Serial.print(" C  ");
  Serial.print("Kelembapan: ");
  Serial.print(kelembapan);
  Serial.println(" %");

  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Suhu: ");
  lcd.print(suhu);
  lcd.print(" C");
  lcd.setCursor(0,1);
  lcd.print("Kelemb: ");
  lcd.print(kelembapan);
  lcd.print(" %");
}